Related Experiment Video
Updated: Jul 30, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Guided elastic waves along a rod defect of a two-dimensional phononic crystal
1Institut FEMTO-ST, Département LPMO, CNRS UMR 6174, 32 avenue de I'Observatoire, 25044 Besançon cedex, France.
Abstract:
It was shown that elastic waves propagating out-of-plane in a two-dimensional phononic crystal can experience full-band-gaps for nonzero values of the wave-vector component parallel to the rods. By further inserting a rod defect, it is demonstrated that modes propagating along the rod defect can be localized within the band-gaps of the phononic crystal. Such waveguide modes are exhibited for a tungsten/epoxy composite containing an aluminum nitride rod as the rod defect. It is expected that guided modes of such a structure can be excited and detected electrically owing to the piezoelectric effect.
More Related Videos
Related Concept Videos
The de Broglie Wavelength
Standing Waves in a Cavity
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
Elastic Strain Energy for Shearing Stresses
Imperfections in Crystal Structure: Point, Line and Plane Defects
Imperfections in Crystal Structure: Stoichiometric Point Defects

